Cementing and snipping machine.



J. W. BARNA.

OEMENTING AND SNIPPING MACHINE. APPLICATION FILED JULY 15, 1908. RENEWEDmy. 10, 1911f 1,016,387. Patented Feb. 6,1912.

3 SHEETS-SHEET 1.

Hli

All! ll' J. W. BARNA.

GEMENTING AND SHIPPING MACHINE.

APPLICATION FILED JULY 15 1908. RENEWED NOV. 10, 1911. 1,016,387.

s SHEETS-SHEET 2.

Patented Feb. 6, 1912.

J. W. BARNA. CEMENTING AND SNIPPING MACHINE.

APPLICATION FILED JULY 15, 1908 RENEWED NOV. 10, 1911. 7

Patented Feb. 6, 1912.

3 SHEETSSHEET 3. v

coLuMum PLANUGRAPII cu., WASIHNG'IUN. u. c.

UNITED STATES PATENT OFFICE.

JOSEPH W. BARNA, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO BOSTONMACHINE WORKS COMPANY," OF LYNN, MASSACHUSETTS, A CORPORATION OFMASSACHU- SETTS.

CEMENTING AND SNIPPING MACHINE.

Application filed Jul'y 15, 1908, Serial No. 443,579.

To all whom it may concern:

Be it known that I, JOSEPH W. BARNA, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Cementing and SnippingMachines, of which the following is a specification, reference being hadtherein to the accompanying drawing.

My invention relates to mechanism to cement and snip shoe uppers,foxings, Vamps, etc., and the main object thereof is to provide amachine which will simultaneously cement both sides of the material andalso snip the edges at the concave curve.

Other objects of the invention will be apparent from the description andaccompanying drawings which illustrate a practicable embodiment thereof.

In the drawings Figure 1 is a side view of a machine embodying thefeatures of my present invention, the successive positions of certain ofthe parts being indicated in dotted lines; Fig. 1 is a detail sectionalview on the line aa of Fig. 1 showing the lost-motion connection betweenthe wiperlever and its operating link; Fig. 2 is a front elevation ofthe machine of Fig. 1; Figs. 3 and 4 are detail views in side elevationwith certain parts in section; Fig. 5 is a detail side view of the valvestem and itsroperating lever or handle; Fig. 6 is a top plan view of alower wiper and of a snipper with the gage for the snout of a quarter;Fig. 7 is a plan view of a Blucher quarter after it has been snipped andcemented by my machine; Fig. 8 is a detail sectional view of the upperand lower wipers and the top of the cement chamber; Fig. 9 is a frontelevation of the parts of Fig. 8, parts being broken away; Fig. 10 is adetail view of the ends of the wipers showing the teeth of the wipersand the end blocks; Fig. 11 is a plan view of a section of one of thewipers of Fig. 8, being taken at its end; Fig. 12 is a detail sectionalview of the wipers showing a slight modification in the form of theupper wiper; Fig. 13 is a detail sectional view of the wiper-lever andits lock; Fig. 14 is a sectional view of the snippers; Fig- 15 is adetail view of the lower snipper jaw and. certain associated elements,some of the parts being in section Specification of Letters Patent.

Patented Feb. 6, 1912.

Renewed November 10, 1911. Serial No. 659,641.

and others in elevation; Fig. 16 is a plan view of a vamp after it hasbeen snipped and cemented by the machine; Fig. 17 is a plan view of aportion of a wiper of slightly modified form; and Fig. 18 is a sectionalview thereof.

In the drawings the reference numeral 10 indicates a suitable glue orcement tank or pot of any desired size and proportions, and preferablyhaving a forwardly extended chamber 11 at its front near its bottom. Inpractice I prefer to incline the floor or bottom 12 of the tankforwardly as shown in the drawings, and the chamber 11 is separated fromthe area of the tank body by a wall 13 having a passage 14 which iscontrolled by any suitable valve. In the form shown a slide valve 15 isemployed having a stem 16 projecting up through the top of the tankwhere it may be manipulated to regulate the flow of cement to thechamber; for convenience of operation the stem may be provided with ahandle 17 pivotally mounted as at 18 upon a standard or post 19 on thetop of the tank.

The upper wall of the chamber 11 is provided with an opening or slot 20which is curved or crescent shaped throughout the greater portion of itslength and is provided at its left end with an angularly disposedforwardly directed portion 21. The mouth of the slot is bell-shaped orflaring by reason of the upwardly extending and oppositely inclined ortapering walls 22.

IVithin the chamber 11 and normally proj ecting up through the slot oropening 20 is a wiper 23 which is mounted upon springs 24 adapted tonormally hold its top edge slightly above the line of the walls 22 asshown in Fig. 3. The wiper 23 is of the same contour as the slot andcooperates with an upper wiper 25 of corresponding shape. The upperwiper 25 is carried upon the lower end of a vertically disposed andmovable rod 26 which is guided in its reciprocations by suitable guides27 attached to a bracket 28 projectingforwardly from the front wall ofthe tank body 10 sufficiently to bring the upper wiper over and inalinement with the lower wiper. The rod 26 is pivotally connected at itsupper end to the front end of a wiper-lever 29 which is pivotallymounted as at 30 in an upright 31 on the top of the tank 10, the

rear. end of the lever. 29 working freely in a loop 32 upon the upperend of a connecting rod 33 to provide a lost-motion connection betweenthese parts substantially as shown in Fig. l and for a purposehereinafter explained, the loop being held from displacement of the endof the lever by a stop-pin 34. v I

A snipper is providedand preferably is located on the top of the chamber11 and in rear of the lower wiper. This snipper may be of any suitableform and in the present embodiment it consists of. a pair of upper andlower jaws 35 and 36, respectively, the lower jaw being horizontallydisposed and with its teeth or knives 37 slightly above the normal planeof the lower wiper 23. The upper jaw is preferably hinged to the lowerjaw by a spring-hinge 38 which tends to hold the upper jaw in'raised oropen position with its teeth or knives 39 separated from those of thelower jaw. The movable jaw may be operated by any suit able means, andfor this purpose I provide its upper surface with a cam 40 adapted to bewiped by a finger or projection'41 on a rock-shaft 42 which is journaledin bearings in opposite uprights 43 on the sides of the chamber.

One end of the rock-shaft 42 has a crank 44 which is connected by a link45 to an operating lever 46 which is pivoted at 47 on a bracket or post48 atone side of the tank and also is connected to the angular lower endof the operating rod 33. The lever 46 is held normally in the positionof the full lines of Fig. 1 by a retractile spring 49, and with theother parts in their respective positions there shown in full lines;when the front end of the operating lever is depressed its initialmovement causes the proj ection or finger 41 on the rock-shaft42 to rideup the front incline of the cam 40 and closes the jaw 35 uponitscompanion jaw 36 (Fig. 3) to snip the material lying therebetween, andwhen the finger passes over the apex or peak of the cam and moves downits rear incline the spring-hinge 38 opens the jaws (Fig. 4) to releasethe material. The parts normally stand in the position of the full linesof Fig. 1 with the jaws and wipers open or separated for the receptionof the material, and while the material is thus being snipped by theinitial movement of the operating lever, the wiper-lever 29 is drawndown by the weight of the upper wiper until the latter rests on thematerial being treated, the correlation of. the wipers causing cement tobe applied to both sides of the material; the parts are then in theposition shown in Fig. 3 and indicated by the dotted lines 00 of Fig. 1.The continued downward movement of the operating lever moves theprojection 41 over the cam 40 but does not operate the lever 29 byreason of the lost-motion connection of Fig. 1, and so allows aninterval for the withdrawal of the material from between the wipers.This continued movement of the operating lever takes up the "lost-motionand brings the bottom of the loop against the lever 29,

and then its downward movement is continued to lower both of the wipersinto the glue or cement for a fresh supply, this position of the wipersbeing shown in Fig. 4 and indicated by the dotted lines y in Fig. 1,this action occurring against the resistance of the springs 24 andplacing them under tension to again project the lower wiper to itsnormal position when the pres sure on the lever 46 is released.

When the machine is out of use it is desirable to retain the wipers downin the pot to keep them fresh with cement, and for this purpose any lockor catch may be employed as for example the turn-button 50 taking underthe rear end of the lever 29 as in Fig. 13. Then in this position thewipers are below their position when temporarily immersed forreplenishing their supply for succeeding operations. Also, when themachine is out of use, it is desirable to keep the cement from exposure,and this may be accomplished by making the upper wiper with an enlargedportion 51 flared or offset in cross-section as shown in Fig. 12 tocorrespond with and close the flare of the walls 22.

The wipers may be of any suitable construction and in practice I havefound that spring-pressed serrated or toothed surfaces are satisfactory,and preferably I divide the surface into sections. Thus, as clearlyshown in Figs. 8 to 12 inclusive, the wipers are composed of a pluralityof toothed plates 52 which are carried by associated springs 53, theplates and springs being mounted in casings 54 on the ends of thewipers, the springs reacting between the wipers and the bodies of theplates which are held against displacement by inturned flanges 55 of thecasings. The wipers are provided at their ends with blocks 56 to takethe pressure ofi' the teeth when the wipers are brought together.

The casing for the toothed plates may of course be constructed in anysuitable manner; in the form thus far described this casing is ametallic shell in which the plates and their associated springs arepositioned with the springs abutting against each other, but in the formillustrated in Figs. 17 and 18 the casings are shown as composed of ametallic block suitably bored or reamed out at intervals to provideindividual cavities 57 for the springs, the numeral 58 designating thedividing walls between adjacent cavities. Each cavity receives itsassociated plate and spring, it being understood of course that theplates practically abut at their adjacent edges by reason of thenarrowness of the dividing walls 58. In practice it is desirable to makeeach Wiper plate as short as is consistent with proper strength of theirindividual springs, so that the plates will wipe into all unevennessesof the leather or other material to be cemented; shoe quarters areusually skived or thinned at their edges and it is therefore desirableto have the wiper plates spring-pressed so that they will follow thetaper of the quarters toward their edges, and also to have them short sothat they will contact with the material throughout their length as thematerial is withdrawn from between them. The springs also provideyielding mountings for the plates so that materials of differentthicknesses may be treated with equally satisfactory results, and theteeth or serrations of the plates are preferably small or fine so thatthey will wipe uniformly over the surfaces of the material, although ofcourse they may be made plain if desired.

In the form shown in Fig. 17 each wiper plate is provided with anabsorbent surface or end 59 which may be provided by suitable sponge orother material for the purpose of furnishing additional cement to'thematerial if desired.

Gages are provided at suitable points to regulate the depth or width ofthe surface to be glued or cemented, and in the form shown in Fig. 6 anend or corner gage 60 is employed in position to receive the snout orcorner of a Blucher quarter, the gage being provided with angularlydisposed gage-faces or risers 61, and also being adjustable to and fromthe wipers in order to vary the width of the surface to be glued by anysuitable means such as the adjusting screw 62 passing through a slot 63in the gage and into the top wall of the chamber. The snipper is alsoprovided with gages 64 whose front edges are suitably positioned toallow the material to rest more or less upon the knives 37 of the lowersnipper jaw, the position of the gages with relation to the teeth beingregulated to correspond with the depth to which it is desired to snipthe material.

All quarters for Blucher shoes must of course be snipped at the centerof their curves, and in order to provide for varying sizes of uppers thesnipper may be adjusted along the length of the wipers. For eX- ample,in the embodiment shown, if larger quarters are treated the snipper willbe moved to the right of its position in Fig. 6, and to the left forsmaller ones. For this purpose the snipper may be provided with anysuitable adjusting means, and as shown in' the present embodiment thesnipper is mounted upon an adjustable base 65 which slides back andforth in the direction of the length of the wipers, being guided bysuitable guides 66. The base may be moved by any suitable means such asthe pivoted handle 67 to which it is connected by a suitable link 68,the free end of the handle being provided with a tooth 69 which engagesa suitably notched or serrated plate 70 to hold the base in its variousadjusted positions In order to vary the width of the cemented area thesnippers, and also their associated guides, may be moved toward and awayfrom the wipers; this may be done by adjusting the base, and for thispurpose as shown in the drawings the base may be in turn mounted upon aplate 71 provided with rearwardly extending wings 72 which may besuitably slotted to receive the headed bolts 7 3 whereby the plate islocked in its various adjusted positions. The plate 71 in this form willalso carry the guides 66.

IV hen a Blucher quarter such as shown at 74 in Fig. 7 is inserted inplace upon the lower wiper, the snipper is adjusted to snip the materialat the center of its curve, it being understood that in practice a pairof such quarters may be simultaneously treated, being placed in positionon the lower wiper with the associated gages adjusted to provide therequired depth of cement to be applied and to snip at the proper points;the machine is then operated as above described with the result that thequarters are snipped at the center of their curve as at 75 in Fig. 7 andthe upper wiper is brought down upon them to substantially the positionshown in Fig. 3, the upper and lower Wipers then resting against theupper and lower faces of the pair of quarters at substantially the line76, shown in Fig. 7, and then as the operator withdraws the quarters thecement is uniformly spread or deposited upon both sides from the line 76to the edge of the material.

In Fig. 16 I have shown a suitable vamp 77 and when Vamps are treatedthey are folded along the dotted line 78 and inserted in place in themachine, the snipper having first been adjusted to position to snip thevamp as shown at 79, and then the wipers are operated to deposit thecement upon both sides of the vamp as shown at 80.

It is obvious that by this mechanism the material may be cemented uponboth sides at the same operation, and furthermore that in addition tothis double cementing operation the material is suitably snipped bypractically one and the same operation employed to deposit the cement.It is also apparent that the yielding arrangement of the wiper platesenables me to use materials of various thicknesses and also insures thecontact of the plates with the material at all points.

The flaring or tapering walls 22 at the opening 20 are important as theyprevent the cement from overflowing through the opening, and also inconjunction with the lit) enlarged portion 51 of the upper wiper serveto seal the tank when the machine is out. of use.

It is of course understood that the shape or contour of the wipers maybe varied acthe rock-shaft being of sufficient extent or beingdiflerently positioned as the case may be to cooperate with the cam ofthe movable snipperaw.

While I have described an embodiment of my invention especially intendedfor cementing and snipping parts of shoes, it is of course to beunderstood that the various features of my invention are adapted formore extended use and may be employed for similarly treating leather orother material for use-in other relations and for other purposes, astheir application as well as their structural details may be widelyvaried without departing from the scope of my invention.

What I claim is 1. In a device of the class described, a tank having anopening, a yielding wiper in the opening, a movable wiper adapted to bemoved to and from the first wiper, and means to operate the movableWiper.

2. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper adapted to be moved toand from the first wiper, a snipper and means to operate the snipper andthe movable wiper.

3. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper adapted to be moved toand from the first wiper, a snipper, a lever, and connections betweenthe lever and the snipper and movable wiper to successively operate thesnipper and wiper.

4. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper adapted to be moved toand from the first wiper, a snipper, a rock shaft having a fingertooperate the snipper, a wiper-lever, and an operating lever connected tothe rock-shaft and wiper-lever to successively operate them.

5. In a device of the class described, a tank having an opening,ayielding wiper in the opening, a movable wiper adapted to be moved toand from the first wiper, a snipper having a movable jaw, a rock-shafthaving a finger to operate the jaw, an operating lever, and connectionsbetween the operating lever and snipper and movable wiper.

6,. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper adapted to be moved toand from the'first wiper, a snipper having a movable jaw, a cam on thejaw, a rock-shaft having a finger to wipe over the cam, a wiper-lever,and means to successively operate the rock-shaft and wiperlever.

7 In a device of the class described, a cement tank, a pair of wipers,means to open and close the same, means to lower the wipers into thetank to supply cement to the wipers, a snipper adjacent the wiperscomprising a pair of jaws, and means to operate the snipper.

8. In a device of the class described, a tank having a flared opening, ayielding wiper in the opening, a movable wiper having a portion adaptedto fill the flared opening and adapted to be moved to and from the firstwiper, and means to operate the movable wiper and to move the same intothe flared opening.

9. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper adapted to be moved toand from the first wiper, a snipper, a lever, and connections betweenthe lever and the snipper and movable wiper to successively operate thesnipper and wiper and then move the wipers into the tank.

10. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper adapted to be moved toand from the first wiper, a snipper, a rock shaft having a finger tooperate the snipper, a wiper-lever, and an operating lever connected tothe rock-shaft and wiperlever to successively operate them and then movethe wipers into the tank.

11. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper, a lever adapted to movethe second wiper to and from the first wiper, a snipper having a movablejaw, a rock-shaft having a finger to operate the jaw, an operatinglever, and operating connections between the operating lever andwiper-lever and movable wiper.

12. In a device of the class described, a tank having an opening, ayielding wiper in the opening, a movable wiper, a lever adapted to movethe second wiper to and from the first wiper, a snipper having a movablejaw, a cam on the jaw, a rock-shaft having a finger to wipe over thecam, and means to successively operate the rock-shaft and wiper-leverfrom a common source of power. I

13. In a device of the class described, a cement tank, opposite wipersmounted on the tank, means to operate the wipers to cement the material,an adjustable snipper, and means to operate the snipper.

14:. In a device of the class described, a

cement tank, a pair of Wipers mounted on the tank, means to operate theWipers to cement the material, a snipper adjustable along the Wipers,and means to operate the snipper.

15. In a device of the class described, a cement tank, a pair of Wipersmounted on the tank, means to operate the Wipers to cement the material,a snipper adjustable to and from the Wipers, and means to operate thesnipper.

16. In a device of the class described, a cement tank, a pair of Wipersmounted. on the tank, means to operate the Wipers to cement thematerial, a snipper adjustable along and to and from the Wipers, andmeans to operate the snipper.

17. In a device of the class described, a cement tank, opposite Wipersmounted on I the tank, means to operate the Wipers to cement thematerial, an adjustable snipper, having a guide, and means to operatethe snipper.

18. In a device of the class described, a cement tank, opposite Wipersmounted on the tank, means to operate the Wipers to cement the material,an adjustable snipper, means to operate the snipper, and an adjustableend-guide.

19. In a device of the class described, a cement tank, opposite Wipersmounted on the tank, means to operate the Wipers to cement the material,an adjustable end-guide, an adjustable snipper having a guide, and meansto operate the snipper.

20. In a device of the class described, a Wiper comprising a body and aseries of Wiper-teeth yieldingly mounted on the body.

21. In a device of the class described, a

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,-

wiper comprising a casing, and a series of yieldingly mountedWiper-elements therein, each such element having a serrated edge.

22. In a device of the class described, a Wiper comprising a casing, anda series of yieldingly mounted Wiper-elements therein, each such elementhaving a serrated plate and an absorbent body.

23. In a device of the class described, a pair of opposite Wipers, meansto open and close the same, yieldingly-mounted teeth therein, andend-blocks thereon.

24. In a device of the class described, a cement tank having an offsetchamber, a Wall of the chamber having an opening communicating Withthetank, a valve controlling the said opening, and cement-applying meanson the chamber.

25. In a device of the class described, a cement tank having an ofisetchamber, a Wall of the chamber having an opening communicating With thetank, a valve controlling the, said opening, a snipper on the chamber,means to operate the snipper, and cement-applying means on the chamber.

26. In a device of the class described, a cement tank having an offsetchamber pro- Vided with a flared opening, a yielding Wiper in theopening, a movable Wiper, means to move the latter Wiper to and from thefirst Wiper, and means to lower the Wipers into the tank.

In testimony whereof I affix my signature in presence of two Witnesses.

JOSEPH W. BARNA. Witnesses:

GEORGE R. HARBAUGH, J. MCROBERTS.

